[mapguide-trac] #467: Add proper cache headers & file date to GETTILEIMAGE response

[MapGuide Open Source]

#467: Add proper cache headers & file date to GETTILEIMAGE response
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   Reporter:  zspitzer      |       Owner:       
       Type:  defect        |      Status:  new  
   Priority:  medium        |   Milestone:       
  Component:  Tile Service  |     Version:  2.0.0
   Severity:  major         |    Keywords:       
External_id:                |  
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 Two anonymous valid requests for a tile from the tilecache will retrieve
 the same file twice

 Adding the cached file date to the responce header will help and cache
 headers

 Combining this with RFC 11 and USERNAME=Anonymous will enable a normal
 proxy server to cache the requests.

 To full take advantage of this viewers would need to check if anonymous
 access is available first for base layers for public sites. It would still
 work using basic for intranet type environments, it's the session in the
 url which creates the problem

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Ticket URL: <http://trac.osgeo.org/mapguide/ticket/467>
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